We have tv and tv-series (and series). I suppose there's a small possibility that someone might want to distinguish between a one-off TV program and a series, but I don't see any value in separating those cases in tags.
I personally don't like any of the media tags - but earlier discussion isn't really clear about their fate (and I've seen them - even series - used by mods, which makes me wary about editing them away). All the positive score answers say that most should only be used when the question is focused on the medium; one suggests leaving some (including tv).
For those that weren't around for the original discussion (or if your view has matured), please go take a look at that question too.
Assuming that tv is here to stay, is it ok to edit out all use of tv-series? Is there anyone that would prefer a synonym? If so, please vote for it - if it gets created (only needs a score of 4) then I guess that's the answer here, and I don't need to edit them away.
There's also now television, which surely is a synonym for TV. It seems like most people prefer a synonym to just editing them away (until the media tag decision is made), so I've suggested these two synonyms, but as yet there are no votes. If you want the synonym, please go vote for it.